Scholarlink

Abstract <p>The article presents calculations of the electron temperature based on the spectral lines of iron and platinum atoms in the plasma-chemical process of obtaining platinum catalysts: platinum nanoparticles on aluminum oxide microparticles as a carrier. The process was initiated by a microwave discharge in a powder mixture consisting of platinum microparticles and γ-Al<sub>2</sub>O<sub>3</sub>, as a result of treatment with powerful (up to 400&#xa0;kW) microwave radiation pulses, the source of which was a gyrotron operating at a frequency of 75 GHz. It is shown that the process leads to the formation of platinum nanoparticles on the surface of aluminum oxide microparticles; the spectral characteristics of the process were measured, and the temperatures were estimated. The data obtained indicate the possibility of transferring platinum particles to the surface of aluminum oxide particles through the gas phase.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Electron Temperature in Plasma-Chemical Processes of Synthesis of Aluminum Oxide Microparticles with Deposited Platinum Nanoparticles

  • 期刊论文

  • 发表日期：

    2025年7月1日

查看全文
  • I. Yu. Vafin,
  • V. P. Logvinenko,
  • A. V. Knyazev,
  • N. N. Skvortsova,
  • E. V. Voronova,
  • V. D. Borzosekov,
  • T. E. Gayanova,
  • V. D. Stepakhin,
  • N. S. Akhmadullina,
  • O. N. Shishilov

摘要

Abstract

The article presents calculations of the electron temperature based on the spectral lines of iron and platinum atoms in the plasma-chemical process of obtaining platinum catalysts: platinum nanoparticles on aluminum oxide microparticles as a carrier. The process was initiated by a microwave discharge in a powder mixture consisting of platinum microparticles and γ-Al2O3, as a result of treatment with powerful (up to 400 kW) microwave radiation pulses, the source of which was a gyrotron operating at a frequency of 75 GHz. It is shown that the process leads to the formation of platinum nanoparticles on the surface of aluminum oxide microparticles; the spectral characteristics of the process were measured, and the temperatures were estimated. The data obtained indicate the possibility of transferring platinum particles to the surface of aluminum oxide particles through the gas phase.